BLAST FURNACE BOTTOM STRUCTURE

摘要

A blast furnace bottom structure has a furnace body (furnace bottom mantel (10)) built on a foundation (5), leg members (113) provided between the foundation (5) and the furnace body to form a horizontally extending gap (50) between the foundation (5) and the furnace body, and cooling pipes (118) as means for blocking transfer of heat from the furnace body to the foundation. Because the gap (50) is an air layer, it suppresses heat transfer, and heat transfer from the leg members (113) is suppressed by cooling by the cooling pipes (118). In demolition of the furnace body, the foundation (5) and the furnace body can be separated from each other by utilizing the gap (50).